February 2020 - Pharo-users

Pharo 8 64 bit image fails to launch
by Michael Burns Feb. 19, 2020

Feb. 19, 2020

I just downloaded Pharo Launcher and downloaded Pharo 8.0 - 64bit (Stable) I created an image but when I try to run it, I see the below Console entries and the process disappears. Im running Catalina on a MacBookPro. Console filter : Pharo default 12:45:28.183485-0600 hidd Connection removed: IOHIDEventSystemConnection uuid:7B1A1A94-63A2-47C7-BCA6-BCC1D2EB629A pid:44235 process:Pharo type:Passive entitlements:0x0 caller:HIServices: ___GetIOHIDEventSystemClient_block_invoke + 26 attributes:(null) inactive:1 events:0 mask:0x0 default 12:45:28.185375-0600 kernel AGC:: [Pharo pid 44235 non-mux-aware] exiting, non-mux-aware app count 0, runtime: 0:46:40.238 default 12:45:28.185501-0600 kernel AGC:: [Pharo pid 44235 mux-aware] exiting, non-mux-aware app count 0, runtime: 0:46:40.239 default 12:45:28.185340-0600 hidd Connection removed: IOHIDEventSystemConnection uuid:12E9BB2B-2602-4885-8303-33C1285F8AA7 pid:44235 process:Pharo type:Passive entitlements:0x0 caller:HIToolbox: ___GetIOHIDEventSystemClient_block_invoke + 26 attributes:(null) inactive:1 events:0 mask:0x0 default 12:45:28.192573-0600 runningboardd Invalidating assertion 398-200-7609 (target:executable<Pharo(501)>) from originator 200 default 12:45:28.206986-0600 mDNSResponder [R75091] DNSServiceCreateConnection STOP PID[44235](Pharo) default 12:45:28.206883-0600 runningboardd [executable<Pharo(501)>:44235] Death sentinel fired! default 12:45:28.218215-0600 loginwindow -[PersistentAppsSupport applicationQuit:] | for app:PharoLauncher, _appTrackingState = 2 default 12:45:28.218254-0600 loginwindow -[PersistentAppsSupport applicationQuit:] | App: PharoLauncher, quit, updating active tracking timer default 12:45:28.221573-0600 runningboardd Invalidating assertion 398-200-7463 (target:executable<Pharo(501)>) from originator 200 default 12:45:28.295074-0600 runningboardd [executable<Pharo(501)>:44235] Ignoring jetsam update because this process is not memory-managed default 12:45:28.295213-0600 runningboardd [executable<Pharo(501)>:44235] Ignoring suspend because this process is not lifecycle managed default 12:45:28.295401-0600 runningboardd [executable<Pharo(501)>:44235] Ignoring GPU update because this process is not GPU managed default 12:45:28.308173-0600 runningboardd Removing process: [executable<Pharo(501)>:44235] default 12:45:28.315872-0600 runningboardd Removing assertions for terminated process: [executable<Pharo(501)>:44235] default 12:45:30.214210-0600 Finder Requested application <private> has policy 0, associated category:DH1009 associated sites:(null) equivalent bundle identifiers:org.pharo.PharoLauncher default 12:45:30.755403-0600 Finder Requested application <private> has policy 0, associated category:DH1009 associated sites:(null) equivalent bundle identifiers:org.pharo.PharoLauncher default 12:45:33.211384-0600 NotificationCenter Looking up app info for org.pharo.PharoLauncher default 12:45:33.218892-0600 NotificationCenter Found info for org.pharo.PharoLauncher at <private>. app name: <private> default 12:45:33.220539-0600 loginwindow -[PersistentAppsSupport saveLogoutPersistentState:finalSnapshot:] | previouslyRunningApps: ( { BackgroundState = 2; BundleID = "com.apple.safari"; Hide = 0; Path = "/Applications/Safari.app"; }, { BackgroundState = 2; BundleID = "com.apple.finder"; Hide = 0; Path = "/System/Library/CoreServices/Finder.app"; }, { BackgroundState = 2; BundleID = "com.apple.mail"; Hide = 0; Path = "/System/Applications/Mail.app"; }, { BackgroundState = 2; BundleID = "org.pharo.pharolauncher"; Hide = 0; Path = "/Applications/PharoLauncher.app"; }, { BackgroundState = 2; BundleID = "com.apple.systempreferences"; Hide = 0; Path = "/System/Applications/System Preferences.app"; }, { BackgroundState = 2; BundleID = "com.apple.console"; Hide = 0; Path = "/System/Applications/Utilities/Console.app"; }, { BackgroundState = 2; BundleID = "com.apple.activitymonitor"; Hide = 0; Path = "/System/Applications/Utilities/Activity Monitor.app"; }, { BackgroundState = 2; BundleID = "com.agilebits.onepassword4"; Hide = 0; Path = "/Applications/others/ accounting&records/1Password 6.app"; }, { BackgroundState = 2; BundleID = "com.apple.terminal"; Hide = 0; Path = "/System/Applications/Utilities/Terminal.app"; }, { BackgroundState = 3; BundleID = "org.macosforge.xquartz.x11"; Hide = 0; Path = "/Applications/Utilities/XQuartz.app"; }, { BackgroundState = 2; BundleID = "com.electron.kitematic_(beta)"; Hide = 0; Path = "/Applications/Kitematic (Beta).app"; }, { BackgroundState = 2; BundleID = "com.apple.ichat"; Hide = 0; Path = "/System/Applications/Messages.app"; }, { BackgroundState = 2; BundleID = "com.apple.addressbook"; Hide = 0; Path = "/System/Applications/Contacts.app"; }, { BackgroundState = 2; BundleID = "com.apple.ical"; Hide = 0; Path = "/System/Applications/Calendar.app"; }, { BackgroundState = 2; BundleID = "com.apple.preview"; Hide = 0; Path = "/System/Applications/Preview.app"; }, { BackgroundState = 2; BundleID = "com.apple.notes"; Hide = 0; Path = "/System/Applications/Notes.app"; }, { BackgroundState = 2; BundleID = "com.apple.diskutility"; Hide = 0; Path = "/System/Applications/Utilities/Disk Utility.app"; }, { BackgroundState = 2; BundleID = "com.apple.ibooksx"; Hide = 0; Path = "/System/Applications/Books.app"; }, { BackgroundState = 2; BundleID = "com.apple.music"; Hide = 0; Path = "/System/Applications/Music.app"; }, { BackgroundState = 2; BundleID = "com.apple.calculator"; Hide = 0; Path = "/System/Applications/Calculator.app"; } )

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"Theming" dictionaries?
by Offray Vladimir Luna CÃ¡rdenas Feb. 19, 2020

Feb. 19, 2020

Hi, As some of you may know, I'm a "savage coder" who learned Smalltalk/Pharo by himself, of course thanks to communities, books and videos, but without formal training or peers in the same country and guided mostly by necessity. All this to say that this maybe kind of a silly question. Anyway, we have this project called Minipedia[1], that imports Wikipedia articles and their history. A Minipedia language there, is just a dictionary, where the key is the language two letters code and the value for each key is an array of article titles. There is any way to specialize a Dictionary to tell it, name your 'key' as language and your 'value' as 'titles'? [1] https://mutabit.com/repos.fossil/minipedia/ Thanks, Offray

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Ubuntu64 install fine, would like to port to Slackware64
by tty Feb. 18, 2020

Feb. 18, 2020

Hi Folks, Pharo 64 launch on Ubuntu 64 launches fine. When I launch Pharo 64 on Slackware 64 I get library call errors . This is probably because Slackware64 stores its libraries in /lib64. Ubuntu stores its 64 bit libs in /lib I much prefer Slackware to Ubuntu. Is there a variable I can set within the Pharo Launcher or elsewhere to have it hit the /lib64 location ? thanks in advance -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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About DuneSt / ChartJs
by Sven Van Caekenberghe Feb. 18, 2020

Feb. 18, 2020

Hi, I am trying to use DuneSt / ChartJs [ https://github.com/DuneSt/ChartJs ] and it looks good. Thanks for another nice library. My first question is about loading the code. I would like to load the minimum possible. I guess the stylesheet code is needed, but not the prism code ? NeoJSON and Seaside are already in my project's dependencies, but Seaside3 seems to never resolve to the same thing, so I would like to skip that. Is that possible ? I have this issue often with Seaside. I could fork and edit the baseline, but I'd rather not. I got a Bar chart on 2D data running right away. But how can I use 'horizontalBar' as type ? var myBarChart = new Chart(ctx, { type: 'horizontalBar', data: data, options: options }); I see that the types are encoded a classes, but the list seems rather limited. Thx, Sven

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Pharo at the free software event at Lyon
by HilaireFernandes Feb. 17, 2020

Feb. 17, 2020

Hello, The 4 & 5 of April there is the free software event at Lyon[1]. I am planing for a DrGeo presentation. It will be cool to present Pharo too. The thematic of this event is "pragmatic and accessible Utopia"[2], and we know Pharo is a pretty good match thanks to its ease of learning from running code and modification capabilities. Will any of you interested to join for a Pharo speech? Hilaire [1] https://www.jdll.org [2] Free translation of mine from the French read on the website event ----- http://drgeo.eu -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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[ANN] Round 2 Results Are In
by Richard Kenneth Eng Feb. 16, 2020

Feb. 16, 2020

https://youtu.be/B2pNMKuuyKw Watch the robot 'A' as it manoeuvres around the board following the team's prescribed strategy. The robot consumes the energy value of each cell it enters. The cells in blue have *negative *energy values! The object is to maximize the score. The winning team comes from Nepean High School in Ottawa, Canada. Next week's round, Round 3, is particularly interesting. The board will contain Death cells (if the robot enters one, it dies and the simulation is terminated), Jump cells (where it jumps ahead n cells in the direction it's moving), and Warp cells (where the robot "warps" to another location on the board). The Round 3 map I've created for the board is particularly challenging. I can hardly wait for that round! Richard

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Re: [Pharo-users] can I write this without the three if then;s
by Dennis Schetinin Feb. 15, 2020

Feb. 15, 2020

It would be an overkill to do it for this particular case, but Smalltalk makes it possible to implement a case-like construction: [ expression ] when: [ :value | condition1 ] do: [-0do :value | ... ]; when: [ :value | condition2 ] do: [ :value | ... ]; otherwiseDo: [ :value | ... ]; evaluate I am sure, something like this has been implemented already somewhere (maybe in Squeak?). Still not sure it is practical as compared to simple if-s, and for sure not widely used :) ...On the other hand, sometimes the case-like construction can be considered a more intension-revealing style. Ð¿Ñ, 27 Ð´ÐµÐº. 2019 Ð³., 22:18 Roelof Wobben via Pharo-users < pharo-users(a)lists.pharo.org>: > Hello, > > Im trying to solve a challenge from exercism where I have to calculate > the points somehow gets on a very simple darts board. > > I solved it like this : > > > scoreX: anInteger y: anInteger2 > | distance | > distance := (anInteger squared + anInteger2 squared) sqrt. > distance > 10 > ifTrue: [ ^ 0 ]. > distance > 5 > ifTrue: [ ^ 1 ]. > distance > 1 > ifTrue: [ ^ 5 ]. > ^ 10 > > > but now I use three if then and I think it's ugly code. > > Is there a way I can make it more the smalltalk way ? > > > Regards, > > Roelof > >

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Developing on Mac Catalina 10.15
by Maximiliano Tabacman Feb. 15, 2020

Feb. 15, 2020

Hi. The Pharo application I developed is offered to users in Windows, Linux and macOS based on the three VMs available on the Pharo website.I basically download the VM, add my image and some resources, rename stuff and put a nice icon, and it's ready to be deployed.Now, since mac updated their users to Catalina (10.15), I've noticed that my application won't work anymore, and it seems to be related to the signature required by Apple. If I download the Pharo VM fromÂ https://files.pharo.org/get-files/80/pharo64-mac-stable.zipand run it, it works. If I open the package contents and add stuff inside the /Resources directory, the application seems to still be working (with those minor changes it would even still just open Pharo and not my app).BUT if I upload it to my Google Drive, and then download it, it no longer works, stating that it's broken and must be moved to the trash. If instead of adding stuff inside I just rename it and change its icon, I can upload and download it and it opens Pharo normally. So I'm guessing, since the _CodeSignature directory was not present in older Pharo Mac VMs, that someone knows how to work with those signatures, and that it must be the key that's missing to make it work. Can anyone point me in the right direction? Any tutorial, mail discussion, or whatever that might tell me how they made it work for Pharo might help me make the changes I need to the .app and get my product working. Thanks!

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Re: [Pharo-users] can I somehow test the contents of a package
by phil＠highoctane.be Feb. 15, 2020

Feb. 15, 2020

I have made some edits. Please check. https://drive.google.com/uc?id=1yjAdoDnfoMvxGf9KG2RGedjXvNQdwOee&export=dow… Archive password: 7777

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[ANN] Teachable on GitHub
by Torsten Bergmann Feb. 14, 2020

Feb. 14, 2020

I moved Teachable project now to GitHub: https://github.com/astares/Pharo-Teachable The Project shows the power of Smalltalk meachanisms within Pharo and can be useful for dynamic mock object building in unit tests. Docu and load instructions are included in the project site. Side note: ========== You can also easily load it via catalog within Pharo 8/9: - take a fresh clean Pharo image using PharoLauncher - click on "regular network connection" in the Quick setup sectiono of Pharo welcome window (this allows spotter to show catalog projects) - open Spotter (SHIFT+ENTER) and key in "Teachable", hit ENTER to load via catalog Another possibility is to search for "Teachable" in Catalog utility directly (Tools -> Catalog Browser). Have fun T.

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